Application of high-stability supported MoS2 catalyst in low-temperature hydrogenation removal of carbonyl sulfide

• Main Authors: CAI BING, LI DANTING, MA YIXING, NING PING, LI YUBIAO, WANG XUEQIAN
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2024
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; FUELS; LUBRICANTS; METALLURGY; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLEGASES CONTAINING CARBON MONOXIDE; SEPARATION; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses an application of a high-stability supported MoS2 catalyst in low-temperature hydrogenation removal of carbonyl sulfide, and the high-stability supported MoS2 catalyst is prepared by the following steps: putting sodium molybdate, nickel acetylacetonate, sublimed sulfur and a carrier SBA-15 into deionized water, uniformly stirring, carrying out ultrasonic treatment, transferring the mixed solution into a polytetrafluoroethylene reaction kettle, carrying out a hydrothermal reaction, filtering, washing, and drying to obtain the high-stability supported MoS2 catalyst. After the reaction is finished, cooling, carrying out solid-liquid separation, sequentially washing the solid with deionized water and absolute ethyl alcohol until the solid is neutral, drying, calcining the solid in an inert atmosphere, and cooling to obtain the product. The catalyst prepared by the invention can realize 100% conversion of COS at 190 DEG C and 100% hydrogen sulfide selectivity, and in a stability test for 20